12/31/2011 — 4.0 magnitude earthquake in east Ohio — MAN MADE — epicenter near quarries and an INJECTION WELL

December 31, 2011

A 4.0 magnitude earthquake struck the Youngstown area in east central Ohio.

I think this was another case of “induced seismicity” — commonly called a man-made quake.

4.0 Magnitude Earthquake Strikes Near Youngstown
December 31, 2011
10TV.com

http://www.10tv.com/content/stories/2011/12/31/youngstown-magnitude-four-earthquake.html

The U.S. Geological Survey said that the 4.0 magnitude quake struck Saturday afternoon in McDonald, outside of Youngstown. There were no immediate reports of damage.

Many have struck near an injection well used to dispose of brine water that is a byproduct of oil and gas drilling. The injection well owner agreed this week to stop injecting brine into the earth while the quakes are investigated.

Watch 10TV News and refresh 10TV.com for continuing coverage.

 

 

 

here are the earthquake stats:

http://earthquake.usgs.gov/earthquakes/recenteqsww/Quakes/usc0007f7s.php

Magnitude 4.0 – YOUNGSTOWN-WARREN URBAN AREA, OHIO

2011 December 31 20:04:58 UTC

Versión en Español

Earthquake Details

  • This event has been reviewed by a seismologist.
Magnitude 4.0
Date-Time
Location 41.159°N, 80.729°W
Depth 2.2 km (1.4 miles) (poorly constrained)
Region YOUNGSTOWN-WARREN URBAN AREA, OHIO

This screenshot below shows the area of the earthquake epicenter… clearly you can see the quarry to the east and to the north (also a large quarry to the south east by 2 miles).

Just this past week, we saw an additional  2.5 magnitude in the same area —- which after doing research proved to be caused by the ‘Salt Springs’ quarry located a few hundred feet away from the earthquake epicenter.

here is the link to this past weeks story from the same spot:

http://sincedutch.wordpress.com/2011/12/30/12292011-ohio-2-5-magnitude-earthquake-man-made-at-a-quarry/

here is a screenshot of this past weeks quake / quarry .

Overall, it seems the edge of the craton keeps on moving — as shown by these series of earthquakes over the past few months.

Here is a screenshot of recent earthquake activity (on the right) compared with a diagram of the craton edge (on the left).

3 thoughts on “12/31/2011 — 4.0 magnitude earthquake in east Ohio — MAN MADE — epicenter near quarries and an INJECTION WELL

  1. After watching one of the videos posted on this site, I clicked on a video that discussed a Chinese military encampment that is 60 miles south of Laredo, Texas and very close to Juarez, Mexico. There is a picture of many, many cargo containers lined up in the area and the camp is 2 miles X 3 miles (approximate size). The people discussing this said that they believed that there may be as many as 10,000 Chinese troops there. The roads into this area appear to be paved while the roads in the general area appear to be dirt. The area is said to be fiercely protected by Mexican officials. When I Google “Chinese operations in Mexico” I see factory stories but the video did not support this. What do you or does anyone know about this? Can anyone verify this story?

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